Home / 55,422.12-83,166.30-20,365.32

Finding the Fourth Proportional to 55,422.12, 83,166.30 and 20,365.32

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Solution

The fourth proportional to 55,422.12, 83,166.30 and 20,365.32 is: 30,560.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,422.12 : 83,166.30 = 20,365.32 : x
  2. Step 2: Convert to fraction form
    55,422.12/83,166.30 = 20,365.32/x
  3. Step 3: Cross multiply
    55,422.12x = 83,166.30 × 20,365.32
  4. Step 4: Simplify right side
    55,422.12x = 1,693,708,312.72
  5. Step 5: Solve for x
    x = 1,693,708,312.72/55,422.12
  6. Step 6: Final answer
    x = 30,560.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.